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1.发明申请公开(公告)号：US20210346873A1
公开(公告)日：2021-11-11
申请号：US17270252
申请日：2019-07-04
Inventor： Young Kyu HWANG , Do Young HONG , Jaesung KWAK , Pandharinath Pravin UPARE , Dong Won HWANG , Jung Ho LEE , Jong-San CHANG , Joung-mo CHO , U Hwang LEE , Kyung Ho CHO , Su Kyung LEE
IPC: B01J23/835 , B01J23/62 , C07C29/141
Abstract: The present disclosure relates to a catalyst for preparing 1,2-pentanediol from furfural and/or furfuryl alcohol, and more particularly to a catalyst, which is configured such that a catalytically active metal containing both at least one transition metal and tin (Sn) is supported on a basic support and is capable of increasing reaction selectivity for 1,2-pentanediol, and a method of preparing 1,2-pentanediol using the same.
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公开(公告)号：US20220062880A1
公开(公告)日：2022-03-03
申请号：US17341474
申请日：2021-06-08
Inventor： Young Kyu HWANG , Anil Haribhau VALEKAR , Ma Eum LEE , Kyung Ryul OH , Do Young HONG
IPC: B01J31/16 , B01J31/22 , B01J37/04 , B01J37/06 , B01J37/00 , B01J37/10 , C07D307/44 , C07D307/58 , C07C29/141 , C07C29/145 , C07C37/055
Abstract: The present disclosure relates to an organometallic framework modified using a compound having a hydroxyl group (—OH), a catalyst for a hydrogenation reaction including the same, and a method of manufacturing the same. The catalyst according to the present disclosure has high activity to the hydrogenation reaction even at a low temperature of 30 to 40° C., thus making low-grade waste heat usable.
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3.发明申请POLYMER MEMBRANE FOR GAS SEPARATION OR ENRICHMENT COMPRISING HYBRID NANOPOROUS MATERIAL, USES THEREOF, AND A PREPARATION METHOD THEREOF 有权用于气体分离或包覆混合纳米材料的聚合物膜及其制备方法及其制备方法公开(公告)号：US20160158708A1
公开(公告)日：2016-06-09
申请号：US14959152
申请日：2015-12-04
Inventor： U-Hwang LEE , Jong San CHANG , Young Kyu HWANG , You In PARK , Hye Rim SONG , Seung Eun NAM , Do Young HONG , Sue Kyung LEE , Kyung Ho CHO
CPC classification number: B01D53/22 , B01D53/228 , B01D67/0079 , B01D69/02 , B01D69/148 , B01D2053/221 , B01D2256/10 , B01D2256/12 , B01D2256/16 , B01D2256/22 , B01D2256/245 , B01D2257/102 , B01D2257/104 , B01D2257/108 , B01D2257/2047 , B01D2257/30 , B01D2257/504 , B01J20/226 , B01J20/262 , B01J20/28033 , Y02C10/10
Abstract: Disclosed herein is polymer membrane for gas separation or concentration which contains a hybrid nanoporous material, an application thereof, and a manufacturing method thereof.Especially, the hybrid nanoporous material has a window size of 4 Å to 15 Å or has gas adsorption characteristics for a gas to be separated, which is different from those for other gases, and thus the present invention may provide the polymer membrane having improved gas permeation selectivity, an application thereof, and a manufacturing method thereof.
Abstract translation: 本文公开了用于气体分离或浓缩的聚合物膜，其包含混合纳米多孔材料，其应用及其制造方法。 特别地，混合纳米多孔材料的窗口尺寸为4至15，或者对于待分离气体具有气体吸附特性，这与其它气体不同，因此本发明可提供具有改进气体的聚合物膜 渗透选择性及其制备方法。
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公开(公告)号：US20230076397A1
公开(公告)日：2023-03-09
申请号：US17885006
申请日：2022-08-10
Inventor： Young Kyu HWANG , Changho YOO , Dong Won HWANG , Kyung-Ryul OH , Do Young HONG , Maeum LEE
IPC: C07C51/41
Abstract: Proposed is a high-yield simultaneous conversion method for a hydrogen source and a carbon dioxide source. The method significantly increases a yield of a formate through conversion of carbon dioxide. To this end, a carbon dioxide source and a hydrocarbon containing one or more hydroxy groups undergo a simultaneous conversion reaction in the presence of a solvent containing one or more alcohols and having a pH of 10 to 14.
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公开(公告)号：US20160304480A1
公开(公告)日：2016-10-20
申请号：US15098905
申请日：2016-04-14
Inventor： Dong Won HWANG , Pravin P. UPARE , Jong San CHANG , Young Kyu HWANG , U Hwang LEE , Do Young HONG
IPC: C07D307/42 , C07D307/48 , C07D307/50 , C07D307/36
CPC classification number: C07D307/42 , C07D307/36 , C07D307/48 , C07D307/50
Abstract: The present invention relates to a method for preparing for a furan derivative from biomass, comprising step (1) of preparing 5-hydroxymethylfurfural by reacting biomass and a solid acid catalyst in butanol; and step (2) of preparing a furan derivative by reacting the butanol solution of 5-hydroxymethylfurfural, obtained in step (1), with a hydrogenation catalyst.
Abstract translation: 本发明涉及从生物质制备呋喃衍生物的方法，包括通过使生物质与丁醇中的固体酸催化剂反应制备5-羟甲基糠醛的步骤（1） 和步骤（2）通过使步骤（1）中获得的5-羟甲基糠醛的丁醇溶液与氢化催化剂反应来制备呋喃衍生物。
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Patent Agency Ranking
公开(公告)号：US20210146344A1
公开(公告)日：2021-05-20
申请号：US17097454
申请日：2020-11-13
Inventor： Young Kyu HWANG , Jaesung KWAK , Maeum LEE , Anil Haribhau VALEKAR , Kyung Ryul OH , Do Young HONG , A Reum BYEUN , Dong Won HWANG , Joungmo CHO
Abstract: Proposed is a catalyst complex having high activity for carbon dioxide conversion reaction that converts carbon dioxide to useful compounds through reaction of carbon dioxide and hydrocarbon containing at least one hydroxyl group, and a carbon dioxide conversion process using the same, wherein the catalyst complex includes, as an active metal in the catalyst complex, at least one of noble metals and at least one of transition metals other than noble metals, thereby having high activity for the carbon dioxide conversion reaction.
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公开(公告)号：US20180339955A1
公开(公告)日：2018-11-29
申请号：US15991930
申请日：2018-05-29
Inventor： Dong Won HWANG , Pravin Pandharinath UPARE , Young Kyu HWANG , Do Young HONG , Jong San CHANG , U Hwang LEE , Su Kyung LEE , Kyung Ho CHO
IPC: C07C29/141 , B01J23/72 , C07C31/26 , C07H3/02
Abstract: The present invention relates to a method for preparing mannitol which includes performing the hydrogenation of fructose in the presence of a Cu-based nanocomposite catalyst, for example, a nanocomposite catalyst of CuO(x)/SiO2(100-x) (wherein x is a real number from 20 to 90), using butanol as a solvent.
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公开(公告)号：US20180002769A1
公开(公告)日：2018-01-04
申请号：US15635060
申请日：2017-06-27
Inventor： Dong Won HWANG , Pravin Pandharinath UPARE , Young Kyu HWANG , In Taek HWANG , Jong San CHANG , Do Young HONG , U Hwang LEE
IPC: C13K11/00 , C07D307/50 , B01J37/08 , B01J37/06 , B01J37/03 , B01J27/236 , B01J37/02 , B01J37/00 , B01J29/70 , B01J29/40 , C13K13/00 , B01J37/04
CPC classification number: C13K11/00 , B01J27/236 , B01J29/40 , B01J29/7007 , B01J37/009 , B01J37/0236 , B01J37/031 , B01J37/04 , B01J37/06 , B01J37/08 , C07D307/50 , C07H1/00 , C07H3/02 , C13K3/00 , C13K13/00 , C13K13/002 , C13K13/007
Abstract: The present invention relates to a method for preparing fructose or xylulose from biomass comprising glucose or xylose, and a method for separating a mixture of glucose and fructose and a mixture of xylose and xylulose.
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9.发明公开公开(公告)号：US20230312451A1
公开(公告)日：2023-10-05
申请号：US18011733
申请日：2021-06-24
Inventor： Joungmo CHO , Do Young HONG , Thi Hong Ngan LE
Abstract: The present disclosure relates to a depolymerization method of a polymer comprising an ester functional group with or without pigments or dyes, a composition for the depolymerization, and a purification method for selectively separating foreign substances from a monomer of the polymer, and is characterized in that a compound represented by formula 1 is added as an additive. The depolymerization method according to the present disclosure enables depolymerization at low temperatures and may increase the yield of a target product. In addition, the purification method according to the present disclosure may remove foreign substances including pigments or dyes from a monomer of the polymer to prepare high-purity monomers.
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公开(公告)号：US20210253545A1
公开(公告)日：2021-08-19
申请号：US17167886
申请日：2021-02-04
Inventor： Dong Won HWANG , Young Kyu HWANG , Ma Eum LEE , Pravin Pandharinath Upare , Do Young HONG
IPC: C07D307/50 , B01J31/02
Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural.
Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.
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